Cornelsen Experimenta
Primary natural science

Students kit Primary chemistry

Why does the sugar in the tea vanish after stirring? Why do blobs of grease float on the top of the soup while the noodles sink to the bottom? Why does sherbet dropped into water create a lot of fizz? For children water is part of their everyday lives. And they notice and watch these phenomena. Some of them – how substances behave in water – can be explored with this box.

By mixing water with various substances and conducting experiments under varying conditions, the students can investigate how the substances behave and identify any similarities or differences. This develops a systematic, networked and sustainable way of thinking that also gets students making the right connections and coming to the right conclusions.

The experiments follow a common theme, becoming increasingly difficult as they go on.

 

Age 10-12

Materials for 6 work groups (for 12 - 18 children)

The picture shows a red experiment box filled with various scientific tools and materials, including measuring instruments, safety glasses and containers. Next to the main box there is a separate box with additional containers and utensils for experiments.

The picture shows a red experiment box filled with various scientific tools and materials, including measuring instruments, safety glasses and containers. Next to the main box there is a separate box with additional containers and utensils for experiments.
The picture shows a red suitcase equipped with various experimental materials, including containers, pipettes, measuring cylinders and other laboratory equipment. On the inside of the lid there are instructions for experiments on the miscibility of water with other substances.
The picture shows a red suitcase with various experimental materials organized in foam inserts. You can see transparent cups and wooden boards with drillable holes that are suitable for educational purposes in science classes.
The picture shows an experiment kit with various tools and measuring devices, including thermometers, a container and possibly test goggles. The materials are neatly arranged in a foam tray that protects and organizes the parts.
The picture shows an informative scroll with the title "What happens when you mix water with ...?". It contains experiments on the solubility of substances in water as well as copyable templates and didactic aids for the educational sector.
The picture shows a set of experimental materials arranged in a foam-padded storage box. The materials include pipettes with red caps, wooden sticks and other utensils for scientific experiments.
The picture shows a box with several transparent plastic bottles of different sizes arranged together with blue lids. These containers are probably intended for chemistry experiments in education.
The picture shows a red container filled with various experimental materials. Inside there are transparent tubes and several flat and round containers that could possibly be used for chemical experiments.
The picture shows an overview of experiments that can be carried out in class, with the focus on topics such as tea, sugar and various water experiments. There are also references to copy templates and teacher comments.
The picture shows a teaching commentary on the "Tea and Sugar" experiment. Possible experiment titles and a short summary of the experiment are given, as well as tips on how to integrate it into the classroom for students.
The image shows instructions for an experiment used in education. It lists the materials needed, such as tea glasses, teaspoons and sugar cubes, and highlights the importance of cleanliness in the workplace.
The image shows several test tubes with different substances arranged in a holder, including water, vinegar, oil, sugar, soil and sand. Above is the question of what happens when these materials are mixed with water.
The picture shows a glass with a bluish, gel-like substance and a container labeled "gel former". The speech bubble text asks if you are experimenting with gel formers.
The picture shows a transparent container with a liquid and a thermometer immersed in the liquid. Next to it is a container labeled "urea".
The image shows a translucent glass with a bubbling green liquid that could have come from an experiment. In the background is a package with bright colors and the inscription "Brause-Pulver" (Fizzy Powder), indicating the experimental theme.
The image shows two transparent cups of blue liquid, one labeled "unstirred" and the other "stirred." Next to them are two pieces of sugar and a speech bubble asks: "...with sugar?"

item number 90350

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further product description


 
 
The following topics are covered:

  • Solubility in water in general
  • Conditions governing solubility in water
  • Water-soluble and water-insoluble substances
  • Reversing the dissolving process
    through crystallization
  • Thermal changes caused by dissolving
    substances in water
  • Changes in viscosity caused by dissolving
    substances in water
  • Formation of gas caused by dissolving
    substances in water

 
Teacher’s manual ‘What happens when we mix water with ...?’

  • The manual includes basic information on the topic and the organization of workstations for the teacher.
    It also contains information about the scientific background, didactic notes on each experiment and student worksheets.
  • Including a list of materials and rules for experiments.

 
With copy templates covering 10 workstations.

experiments
  • 1 - Water and sugar – in large quantities

    experiment "Water and sugar – in large quantities"

    These experiments look at conditions affecting solubility. Variations and follow-up options are described in the teacher guidance sections.


  • 2 - Water and urea

    experiment "Water and urea"

    This experiment lets students investigate the thermal changes that occur when certain substances are added to water.


  • 3 - Tea and sugar

    experiment "Tea and sugar"

    The first experiment is designed for students with no previous experience of experiments. It uses common household materials. At this stage, the topic reflects everyday experiences and is an introduction to acting and thinking scientifically.


  • 4 - Water and sugar

    experiment "Water and sugar"

    In this second experiment the students encounter the same phenomena, but with a stronger emphasis on laboratory-style work.


  • 5 - Water and sugar – with and without stirring

    experiment "Water and sugar – with and without stirring"

    These experiments look at conditions affecting solubility. Variations and follow-up options are described in the teacher guidance sections.


  • 6 - Water and sugar – warm and cold

    experiment "Water and sugar – warm and cold"

    These experiments look at conditions affecting solubility. Variations and follow-up options are described in the teacher guidance sections.


  • 7 - Water and various substances

    experiment "Water and various substances"

    These experiments look at conditions affecting solubility. Variations and follow-up options are described in the teacher guidance sections.


  • 8 - Water and salt

    experiment "Water and salt"

    This experiment revisits the theme of solubility before moving on to crystallization.


  • 9 - Water and gelling agents

    experiment "Water and gelling agents"

    This experiment looks at the solidification of water caused by the addition of substances that form a gel.


  • 10 - Water and sherbet

    experiment "Water and sherbet"

    This experiment leads into a new chapter of Research and Explore focusing on “sherbet”.


scope of supply
  • 1 × Foam insert 1 for 90350, 500x360x45 mm
  • 6 × Metal spoon, 138 mm
  • 12 × Plastic beaker with screw-top, 100 ml
  • 4 × Dropping-cap for 88444/45
  • 6 × Metal plate, 150 mmØ
  • 6 × Spatula, Micro Powder
  • 2 × Plastic box 105x90x50 mm
  • 6 × Glassholder for tealight
  • 1 × Plastic box, 140x50x25mm
  • 1 × Foam insert 2 for 90350, 515x370x95 mm
  • 12 × Beaker, PP 280 ml
  • 1 × Carton for SEG (large tray)
  • 6 × Flask, PE, narrow neck 250 ml
  • 12 × Dropping pipette, plastic
  • 4 × Flask, PE, narrow neck 50 ml
  • 1 × Trough, plastic transp. 210x110x80 mm
  • 6 × Stand for 609401
  • 6 × Test tubes rack, perspex 6 tubes with rods
  • 1 × Safety goggles
  • 1 × Lid for 75028 + 75038
  • 6 × Rubber stopper 18/14 mm
  • 6 × Thermometer student type –3°C to +103°C
  • 1 × Hinge box, 140x95x30 mm
  • 12 × Safety goggles, small design
  • 1 × Wooden sticks, 100 pcs. 200x3 mm
  • 1 × Tray 510x360x20 mm
  • 1 × Storing tray, deep, red
  • 1 × SEG Lidfoam, grey 20 mm
  • 1 × Storing diagram,int.vers.
  • 1 ×
  • 6 ×
  • 1 ×
  • 6 ×
  • 1 ×
  • 12 ×
  • 1 × Plastic case ca.540x450x150 mm

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